20133680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 54073920

約数和(自身を除く): 33940240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 229, 280, 314, 458, 560, 628, 785, 916, 1099, 1145, 1256, 1570, 1603, 1832, 2198, 2290, 2512, 3140, 3206, 3664, 4396, 4580, 5495, 6280, 6412, 8015, 8792, 9160, 10990, 12560, 12824, 16030, 17584, 18320, 21980, 25648, 32060, 35953, 43960, 64120, 71906, 87920, 128240, 143812, 179765, 251671, 287624, 359530, 503342, 575248, 719060, 1006684, 1258355, 1438120, 2013368, 2516710, 2876240, 4026736, 5033420, 10066840, 20133680]

約数ペア:

[(1, 20133680), (2, 10066840), (4, 5033420), (5, 4026736), (7, 2876240), (8, 2516710), (10, 2013368), (14, 1438120), (16, 1258355), (20, 1006684), (28, 719060), (35, 575248), (40, 503342), (56, 359530), (70, 287624), (80, 251671), (112, 179765), (140, 143812), (157, 128240), (229, 87920), (280, 71906), (314, 64120), (458, 43960), (560, 35953), (628, 32060), (785, 25648), (916, 21980), (1099, 18320), (1145, 17584), (1256, 16030), (1570, 12824), (1603, 12560), (1832, 10990), (2198, 9160), (2290, 8792), (2512, 8015), (3140, 6412), (3206, 6280), (3664, 5495), (4396, 4580)]